Steering apparatus



'(No Model.)

T. ELLIS.

V STEERING APPARATUS. No. 493,692. Patented. Mar, 21, 1893.

, lzwenloh 1 Q/ aLOI; ol/M Wmdl/ (2 idnfia nio seas lHOMA S ELLIS, OF ROCHESTER, MASSACHUSETTS.

STEERING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 493,692, dated. March 21, 1893.

' Application filed uly 27, 1892. Serial No. 4.41.349. (No model.)

To otZZ whom it may concern.-

Be it known that I, THOMAS ELLIS, a citizen of the United States, residing at Rochester, in the county of Plymouth and State of Massachusetts, have invented certain new and useful Improvements in Apparatus for Steering Ships, of which the following is a specification.

The object of my invention is to provide a ship with means whereby its bow or stern may be moved to starboard or port; or the vessel moved bodily to starboard or port or, turned about, as on a pivot.

To this end, my invention consists in providin gthe vessel with transverse openings near its keel; mounting propellers in said openings,in such a manner, that their force will be exerted transversely to theline of the keel; and providing them with means to revolve them in the same or opposite direction.

In the accompanying drawings, Figure 1,

represents a side view of a vessel, on a small scale, with my improved steering apparatus arranged at how and stern. Fig. 2, is ah enlarged top view of one of the propellers, and showing a part of the vessel in longitudinal section. Fig. 3; represents a view of the device, by means of which motion is com municated to the propeller, and controlled.

Similar letters refer to similar parts, in the several views. f

(4, represents a vessel, having the trans verse openings Z), through its bow and stern.

(l, (1, represent propellers, mounted in said openings, and having their bearings in the bars 0. The propeller shafts, are provided with bevel gears, meshing with gear wheels on the shafts e, and e, which shafts are in line with each other, as shown in Fig. 3, and have their inner ends provided with the splines, 75, and la.

y, is a bevel gear, fixed to the shaft 6', and

moshing with the bevel gearf, which gear,

rcoeivesmotion from an engine or other suitable power, and is adapted to have'its motion reversed, accelerated, or retarded.

g. is bevel gear, provided with a collar or hub h, and adapted to slide on the shaft 6, and revolved with it, by means of the spline k. a h, is a collar adapted to slide on the end of the shaft e, and be revolved with i,t,by means of the spline 7c:

Z. is a rod, sliding in bearings n,n,.and provided with forks i, 1', which embrace the grooves .in the collars h, and h.

The rod l, is provided with the lever m, by means of which the said collars are moved in a longitudinal direction on the shafts c, and e. v

The operation of the apparatus, is as follows: When it is desired to turn the vessel about, as on a pivot, the lever m, occupies the position, as shown in Fig. 3, in which the shafts e, and e; and consequently the propellers, would be revolved in opposite directions, and the propellers, would push the bow, to port, and the stern to starboard, or vice versa. When it is desired to move the vessel bodily, to port or starboard, the lever m, is moved so as to bring the collar it, over the ends of the shafts e, and e, which motion, moves the gear g, from contact with the gear f, and the shafts e, and e, revolve as one shaft, and cause the propellers to revolve, both inthe same direction, thus pushing the vessel, bodily to port or starboard, as the case may be. When it is desired to revolve, only, the propeller moved by the shaft 6-; the lever in, is moved so as to bring the collar h, ontirely on the shaft e.

l olaim A marine vessel having transverse opcir,

an engine; a bevelgcar g, fixed to the shaft e',and meshing with the gear f; a bevel gear 9, having grooved hub h, adapted to slide on the shaft 8, and communipate motion to it by means of the spline 71:, and adapted to mesh valve in the same, or opposite direction at with the gear f, at certain times; a grooved the will of the pilot, for the purpose as shown 10 collar h',adapted to connect the shafts e, and and described e, at certain times; a. rod Z, sliding in bearings and provided with the forks 1:, and 1", adapted to embrace the grooves in the collars Witnesses! 7L, and h, and means to operate said rod, HENRY W. MASON, whereby the marine screws are caused to re- FRED A. MASON.

'rIIoMAs JL'Is. 

